I was looking for a solution to the softkeys backlight issues found on a couple of huawei mobile phones running cyano9, at the end I decided to develop my own application that keeps the sofkey backlight on whenever the screen is active. I released SOFT BUTTONS LIGHT, tested for a couple of days and I have to say i'm good with it, It should work on every device too because it doesn't need any root access. I hope it helps, it's free and ad-free, for questions or suggestions feel free to send me a feedback or post here, i will appreciate it very much.
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